#include <iostream>
using namespace std;
 
int main() {
	int n = 0;
	cin >> n;
	double maxPer = 0; //didziausias perimetras
	double rx, ry; //maxPer krastines
	for(int i = 0; i < n; i++)
	{
		double x, y;
		cin >> x >> y;
		double curPer = x * 2 + y * 2; //nuskaitomo staciakampio perimetras
		if(curPer > maxPer) //jei dabartinis perimetras didesnis uz issaugota
		{
			maxPer = curPer;
			rx = x;
			ry = y;
		}
	}
	cout << "didziausias perimetras: " << maxPer << '\n';
	cout << "krastines: " << rx << " m ir " << ry << " m\n";
	return 0;
}

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NAozLjI1CjQuMDAKNC4yMwo1LjM0CjEwLjI1CjMuMTAKNy41MAo1LjY3

4
3.25
4.00
4.23
5.34
10.25
3.10
7.50
5.67